LFP vs NMC home batteries: which chemistry to fit?

Two lithium chemistries dominate UK home batteries. One is dense and fading from the market; the other is heavier and now standard. Here's why the industry has settled.

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In short

LFP is now standard on every major UK home battery — Tesla Powerwall 3, GivEnergy AIO, Pylontech, Fox ESS, Sigenergy. NMC delivers more kWh per kg and was common on early Powerwall 2 units, but its thermal-runaway risk and shorter cycle life have pushed it out of domestic stationary storage. If a 2026 quote lists an NMC battery, ask why.

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